Will using longs instead of ints benefit in 64bit java

Question

In a 64 bit VM, will using longs instead of ints do any better in terms of performance given that longs are 64 bits in java and hence pulli

Answer 1

I always go with use the right datatype based on your problem domain.

What I mean by this is if you need 64 bit long then use a 64bit long, but if you don't need a 64 bit long then use an int.

Using 32 bits on a 64 bit platform is not expensive, and it makes no sense to do a comparison based on performance.

To me this doesn't look right:

for(long l = 0; l<100; l++)
 //SendToTheMoon(l);

And SendToTheMoon has nothing to do with it.